Suchergebnisse

Concerns regarding noxious emissions from internal combustion engines have increased over the years. There is a strong need to understand the nature of sub-23 nm particles and to develop measurement techniques to evaluate the feasibility of new regulations for particle number emissions in the sub-23 nm region (down to at least 10 nm). This paper presents the results of three EU-funded projects (DownToTen, PEMs4Nano and SUREAL-23) which supported the understanding, measurement and regulation of particle emissions below 23 nm and have successfully developed sub-23 nm particle measurement devices, specifically laboratory systems and mobile devices for RDE tests. The new technology was validated in chassis dyno tests and on the real road. The results show that sub-23 nm particles are mainly generated at the engine start and during acceleration phases. The innovations show that the technology is mature and robust enough to serve as a basis for regulating sub-23 nm particles. ; The DownToTen project has received funding from the European Union's Horizon 2020 research and innovation programme under agreement No 724085. The PEMs4Nano project has received funding from the European Union's Horizon 2020 research and innovation programme under agreement No 724145. The SUREAL-23 project has received funding from the European Union's Horizon 2020 research and innovation programme under agreement No 724136.